+/** @file main.cc
+ * @brief Entry point for the model checker.
+ */
+
#include "libthreads.h"
#include "common.h"
#include "threads.h"
/* global "model" object */
#include "model.h"
-#include "snapshot.h"
#include "snapshot-interface.h"
-/*
- * Return 1 if found next thread, 0 otherwise
+/** The thread_system_next function takes the next step in the
+ * execution. @return Returns the 1 if there is another step and 0
+ * otherwise.
*/
+
static int thread_system_next(void) {
Thread *curr, *next;
-
+
curr = thread_current();
if (curr) {
if (curr->get_state() == THREAD_READY) {
return Thread::swap(model->get_system_context(), next);
}
+/** The thread_wait_finish method runs the current execution until we
+ * have no more steps to take.
+ */
+
static void thread_wait_finish(void) {
DBG();
while (!thread_system_next());
}
+
+/** The real_main function contains the main model checking loop. */
+
void real_main() {
thrd_t user_thread;
ucontext_t main_context;
- //Create the singleton snapshotStack object
- snapshotObject = new snapshotStack();
-
+ //Create the singleton SnapshotStack object
+ snapshotObject = new SnapshotStack();
+
model = new ModelChecker();
-
+
if (getcontext(&main_context))
return;
-
+
model->set_system_context(&main_context);
+ snapshotObject->snapshotStep(0);
+
do {
/* Start user program */
model->add_thread(new Thread(&user_thread, (void (*)(void *)) &user_main, NULL));
-
+
/* Wait for all threads to complete */
thread_wait_finish();
} while (model->next_execution());
-
+
delete model;
-
+
DEBUG("Exiting\n");
}
int main_numargs;
char ** main_args;
-/*
- * Main system function
+/**
+ * Main function. Just initializes snapshotting library and the
+ * snapshotting library calls the real_main function.
*/
int main(int numargs, char ** args) {
/* Stash this stuff in case someone wants it eventually */